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TUCoPS :: HP/UX :: bt112.txt

rwrite buffer overflow in hp-ux





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Re: buffer overflow in rwrite

We were unable to duplicate the buffer overflow reported  by
bt@delfi.lt when the patches recommended in the following
security bulletin are installed.


- -----------------------------------------------------------------
**REVISED 01**
 Source: HEWLETT-PACKARD COMPANY
 SECURITY BULLETIN:   HPSBUX0208-213
 Originally issued: 27 August 2002
 Last Revised: 31 December 2002
 SSRT2331 Security Vulnerability in lp subsystem
 -----------------------------------------------------------------

The information in the following Security Bulletin should be
acted upon as soon as possible.  Hewlett-Packard Company will
not be liable for any consequences to any customer resulting
from customer's failure to fully implement instructions in this
Security Bulletin as soon as possible.

 ------------------------------------------------------------------
PROBLEM:  Potential buffer overflows in lp subsystem

PLATFORM: HP9000 Servers running HP-UX releases 10.20, 11.00, and
          11.11 (11i).

DAMAGE:   Potential denial of service to lp subsystem,

SOLUTION: Install the applicable patch for the OS release:
              HP-UX 10.20          PHCO_27133,
              HP-UX 11.00          PHCO_27132,
              HP-UX 11.11          PHCO_27020.

**REVISED 01**
MANUAL ACTIONS: No

AVAILABILITY:  The patches are available now on itrc.hp.com.

CHANGE SUMMARY: Revision 01 modify MANUAL ACTIONS field
 ------------------------------------------------------------------
 A. Background
    The LP subsystem cummulative patch fixes buffer overflows
    that potentially would be exploitable by local users.

 B. Recommended solution
    Retrieve and install the following appropriate patches:
              HP-UX 10.20          PHCO_27133,
              HP-UX 11.00          PHCO_27132,
              HP-UX 11.11          PHCO_27020.

 C. To subscribe to automatically receive future NEW HP Security
    Bulletins from the HP IT Resource Center via electronic
    mail, do the following:

    Use your browser to get to the HP IT Resource Center page
    at:

       http://itrc.hp.com

    Use the 'Login' tab at the left side of the screen to login
    using your ID and password.  Use your existing login or the
    "Register" button at the left to create a login, in order to
    gain access to many areas of the ITRC.  Remember to save the
    User ID assigned to you, and your password.

    In the left most frame select "Maintenance and Support".

    Under the "Notifications" section (near the bottom of
    the page), select "Support Information Digests".

    To -subscribe- to future HP Security Bulletins or other
    Technical Digests, click the check box (in the left column)
    for the appropriate digest and then click the "Update
    Subscriptions" button at the bottom of the page.

    or

    To -review- bulletins already released, select the link
    (in the middle column) for the appropriate digest.

    To -gain access- to the Security Patch Matrix, select
    the link for "The Security Bulletins Archive".  (near the
    bottom of the page)  Once in the archive the third link is
    to the current Security Patch Matrix. Updated daily, this
    matrix categorizes security patches by platform/OS release,
    and by bulletin topic.  Security Patch Check completely
    automates the process of reviewing the patch matrix for
    11.XX systems.

    For information on the Security Patch Check tool, see:
    http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
    displayProductInfo.pl?productNumber=B6834AA

    The security patch matrix is also available via anonymous
    ftp:

    ftp://ftp.itrc.hp.com/export/patches/hp-ux_patch_matrix/

    On the "Support Information Digest Main" page:
    click on the "HP Security Bulletin Archive".

 D. To report new security vulnerabilities, send email to

    security-alert@hp.com

    Please encrypt any exploit information using the
    security-alert PGP key, available from your local key
    server, or by sending a message with a -subject- (not body)
    of 'get key' (no quotes) to security-alert@hp.com.

    Permission is granted for copying and circulating this
    Bulletin to Hewlett-Packard (HP) customers (or the Internet
    community) for the purpose of alerting them to problems,
    if and only if, the Bulletin is not edited or changed in
    any way, is attributed to HP, and provided such reproduction
    and/or distribution is performed for non-commercial purposes.

    Any other use of this information is prohibited. HP is not
    liable for any misuse of this information by any third party.
 ________________________________________________________________


Yours truly,
John Morris
 SOFTWARE SECURITY RESPONSE TEAM (SSRT)
 Hewlett-Packard Company
 HP Services

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